Abstract
1 A. N. Belozersky Institute of Physical-Chemical Biology, Moscow State University, Moscow, Russia
2 Institute of Poliomyelitis and Viral Encephalitides, Russian Academy of Medical Science, Moscow, Region 142782, Russia
3 Scientific Centre for Control of Special Pathogens, Tbilisi, Georgia
4 Laboratory of Virology, National Institute of Public Health and Environmental Protection (RIVM), Bilthoven, The Netherlands
5 Division of Viral and Rickettsial Diseases, National Center for Infectious Diseases, Centers for Disease Control and Prevention, Atlanta, Georgia 30333, USA